Difference between class and object in Kotlin: when to use the object keyword?

Hello! I just started learning Kotlin after Java and got confused about the object keyword. In Java we use new to create instances, and class is just a template. But in Kotlin I see that object is used everywhere: for declaring singletons, for creating anonymous classes, and even as a companion object inside a class. Here's an example that confuses me: ```kotlin // Is this a class? class MyClass { fun doSomething() { println("Hello from class") } } // And what is this? Also a class? object MyObject { fun doSomething() { println("Hello from object") } } // And how to use it? fun main() { val instance = MyClass() // Ok, creating a class instance MyObject.doSomething() // But here without new? Why? } ``` Please explain in